./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39feee77bf576ea852c42114836a4ed3182237f56346991038306ebcfd74e257 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 00:00:26,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:00:26,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:00:26,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:00:26,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:00:26,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:00:26,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:00:26,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:00:26,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:00:26,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:00:26,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:00:26,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:00:26,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:00:26,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:00:26,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:00:26,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:00:26,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:00:26,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:00:26,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:00:26,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:00:26,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:00:26,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:00:26,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:00:26,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:00:26,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:00:26,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:00:26,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:00:26,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:00:26,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:00:26,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:00:26,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:00:26,673 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:00:26,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:00:26,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:00:26,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:00:26,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:00:26,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:00:26,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:00:26,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:00:26,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:00:26,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:00:26,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-29 00:00:26,741 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:00:26,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:00:26,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:00:26,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:00:26,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:00:26,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:00:26,745 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:00:26,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:00:26,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:00:26,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:00:26,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:00:26,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:00:26,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 00:00:26,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 00:00:26,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 00:00:26,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:00:26,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:00:26,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:00:26,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 00:00:26,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:00:26,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:00:26,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 00:00:26,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:00:26,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:00:26,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 00:00:26,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 00:00:26,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:00:26,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 00:00:26,752 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-29 00:00:26,753 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-29 00:00:26,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 00:00:26,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:00:26,754 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39feee77bf576ea852c42114836a4ed3182237f56346991038306ebcfd74e257 [2021-10-29 00:00:27,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:00:27,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:00:27,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:00:27,146 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:00:27,147 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:00:27,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2021-10-29 00:00:27,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/data/2b9a3f477/08e257865c1c4c5c9b073a1a3e224a2b/FLAG687c97d55 [2021-10-29 00:00:28,022 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:00:28,023 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2021-10-29 00:00:28,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/data/2b9a3f477/08e257865c1c4c5c9b073a1a3e224a2b/FLAG687c97d55 [2021-10-29 00:00:28,276 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/data/2b9a3f477/08e257865c1c4c5c9b073a1a3e224a2b [2021-10-29 00:00:28,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:00:28,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:00:28,289 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:00:28,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:00:28,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:00:28,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:28" (1/1) ... [2021-10-29 00:00:28,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2622ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:28, skipping insertion in model container [2021-10-29 00:00:28,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:28" (1/1) ... [2021-10-29 00:00:28,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:00:28,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:00:28,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2021-10-29 00:00:28,720 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2021-10-29 00:00:28,729 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2021-10-29 00:00:28,732 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2021-10-29 00:00:28,736 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2021-10-29 00:00:28,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2021-10-29 00:00:28,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2021-10-29 00:00:28,744 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2021-10-29 00:00:28,747 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2021-10-29 00:00:28,749 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2021-10-29 00:00:28,754 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2021-10-29 00:00:28,757 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2021-10-29 00:00:28,863 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2021-10-29 00:00:28,871 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2021-10-29 00:00:28,875 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2021-10-29 00:00:28,878 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2021-10-29 00:00:28,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:00:28,933 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:00:28,968 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2021-10-29 00:00:28,970 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2021-10-29 00:00:28,974 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2021-10-29 00:00:28,976 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2021-10-29 00:00:28,980 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2021-10-29 00:00:28,982 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2021-10-29 00:00:28,993 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2021-10-29 00:00:28,996 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2021-10-29 00:00:28,998 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2021-10-29 00:00:29,000 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2021-10-29 00:00:29,003 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2021-10-29 00:00:29,004 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2021-10-29 00:00:29,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2021-10-29 00:00:29,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2021-10-29 00:00:29,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2021-10-29 00:00:29,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2021-10-29 00:00:29,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:00:29,100 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:00:29,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29 WrapperNode [2021-10-29 00:00:29,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:00:29,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:00:29,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:00:29,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:00:29,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:00:29,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:00:29,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:00:29,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:00:29,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:00:29,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:00:29,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:00:29,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:00:29,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (1/1) ... [2021-10-29 00:00:29,372 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:00:29,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:29,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:29,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 00:00:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 00:00:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:00:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:00:29,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:00:30,357 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:00:30,357 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-29 00:00:30,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:30 BoogieIcfgContainer [2021-10-29 00:00:30,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:00:30,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 00:00:30,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 00:00:30,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 00:00:30,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:00:28" (1/3) ... [2021-10-29 00:00:30,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb84b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:00:30, skipping insertion in model container [2021-10-29 00:00:30,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:29" (2/3) ... [2021-10-29 00:00:30,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb84b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:00:30, skipping insertion in model container [2021-10-29 00:00:30,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:30" (3/3) ... [2021-10-29 00:00:30,372 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2021-10-29 00:00:30,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 00:00:30,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-10-29 00:00:30,446 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 00:00:30,454 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 00:00:30,455 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-10-29 00:00:30,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 103 states have (on average 1.912621359223301) internal successors, (197), 119 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:30,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 00:00:30,482 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:30,483 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:30,483 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:30,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:30,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1804934597, now seen corresponding path program 1 times [2021-10-29 00:00:30,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:30,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22512365] [2021-10-29 00:00:30,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:30,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:30,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:30,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22512365] [2021-10-29 00:00:30,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22512365] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:30,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:30,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 00:00:30,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428789297] [2021-10-29 00:00:30,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:00:30,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:30,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:00:30,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:00:30,834 INFO L87 Difference]: Start difference. First operand has 120 states, 103 states have (on average 1.912621359223301) internal successors, (197), 119 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:31,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:31,260 INFO L93 Difference]: Finished difference Result 131 states and 205 transitions. [2021-10-29 00:00:31,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:31,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-29 00:00:31,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:31,281 INFO L225 Difference]: With dead ends: 131 [2021-10-29 00:00:31,282 INFO L226 Difference]: Without dead ends: 114 [2021-10-29 00:00:31,286 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:31,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-29 00:00:31,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-10-29 00:00:31,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 99 states have (on average 1.3636363636363635) internal successors, (135), 113 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2021-10-29 00:00:31,390 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 7 [2021-10-29 00:00:31,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:31,391 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2021-10-29 00:00:31,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:31,394 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2021-10-29 00:00:31,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 00:00:31,395 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:31,395 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:31,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 00:00:31,396 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:31,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:31,397 INFO L85 PathProgramCache]: Analyzing trace with hash 118401710, now seen corresponding path program 1 times [2021-10-29 00:00:31,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:31,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452949482] [2021-10-29 00:00:31,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:31,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:31,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:31,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452949482] [2021-10-29 00:00:31,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452949482] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:31,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:31,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:00:31,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487522667] [2021-10-29 00:00:31,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:31,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:31,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:31,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:31,588 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:31,814 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2021-10-29 00:00:31,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:31,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 00:00:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:31,818 INFO L225 Difference]: With dead ends: 114 [2021-10-29 00:00:31,819 INFO L226 Difference]: Without dead ends: 109 [2021-10-29 00:00:31,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:31,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-29 00:00:31,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-29 00:00:31,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 95 states have (on average 1.2736842105263158) internal successors, (121), 108 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2021-10-29 00:00:31,832 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 8 [2021-10-29 00:00:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:31,832 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2021-10-29 00:00:31,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2021-10-29 00:00:31,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 00:00:31,834 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:31,834 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:31,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 00:00:31,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:31,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:31,836 INFO L85 PathProgramCache]: Analyzing trace with hash -639549266, now seen corresponding path program 1 times [2021-10-29 00:00:31,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:31,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573619018] [2021-10-29 00:00:31,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:31,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:31,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:31,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:31,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573619018] [2021-10-29 00:00:31,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573619018] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:31,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:31,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:00:31,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139975110] [2021-10-29 00:00:31,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:31,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:31,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:31,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:31,950 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:32,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:32,224 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2021-10-29 00:00:32,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:32,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 00:00:32,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:32,227 INFO L225 Difference]: With dead ends: 109 [2021-10-29 00:00:32,227 INFO L226 Difference]: Without dead ends: 107 [2021-10-29 00:00:32,228 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:32,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-29 00:00:32,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-29 00:00:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 94 states have (on average 1.2659574468085106) internal successors, (119), 106 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:32,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2021-10-29 00:00:32,239 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 11 [2021-10-29 00:00:32,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:32,239 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2021-10-29 00:00:32,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:32,240 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2021-10-29 00:00:32,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 00:00:32,241 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:32,241 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:32,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 00:00:32,242 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:32,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:32,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1648813321, now seen corresponding path program 1 times [2021-10-29 00:00:32,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:32,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51037653] [2021-10-29 00:00:32,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:32,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:32,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:32,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51037653] [2021-10-29 00:00:32,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51037653] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:32,321 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:32,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 00:00:32,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363068856] [2021-10-29 00:00:32,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:00:32,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:32,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:00:32,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:00:32,323 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:32,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:32,510 INFO L93 Difference]: Finished difference Result 107 states and 119 transitions. [2021-10-29 00:00:32,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:32,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 00:00:32,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:32,516 INFO L225 Difference]: With dead ends: 107 [2021-10-29 00:00:32,517 INFO L226 Difference]: Without dead ends: 103 [2021-10-29 00:00:32,517 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-10-29 00:00:32,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-10-29 00:00:32,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 91 states have (on average 1.2637362637362637) internal successors, (115), 102 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:32,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 115 transitions. [2021-10-29 00:00:32,540 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 115 transitions. Word has length 12 [2021-10-29 00:00:32,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:32,541 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 115 transitions. [2021-10-29 00:00:32,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:32,541 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 115 transitions. [2021-10-29 00:00:32,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 00:00:32,542 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:32,543 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:32,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 00:00:32,543 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:32,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:32,546 INFO L85 PathProgramCache]: Analyzing trace with hash -411248735, now seen corresponding path program 1 times [2021-10-29 00:00:32,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:32,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683621343] [2021-10-29 00:00:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:32,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:32,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:32,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683621343] [2021-10-29 00:00:32,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683621343] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:32,687 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:32,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:00:32,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640495603] [2021-10-29 00:00:32,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:32,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:32,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:32,699 INFO L87 Difference]: Start difference. First operand 103 states and 115 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:33,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:33,014 INFO L93 Difference]: Finished difference Result 121 states and 135 transitions. [2021-10-29 00:00:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:33,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 00:00:33,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:33,016 INFO L225 Difference]: With dead ends: 121 [2021-10-29 00:00:33,016 INFO L226 Difference]: Without dead ends: 119 [2021-10-29 00:00:33,017 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:33,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-29 00:00:33,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 101. [2021-10-29 00:00:33,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 90 states have (on average 1.2555555555555555) internal successors, (113), 100 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:33,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 113 transitions. [2021-10-29 00:00:33,028 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 113 transitions. Word has length 13 [2021-10-29 00:00:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:33,028 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 113 transitions. [2021-10-29 00:00:33,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:33,029 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 113 transitions. [2021-10-29 00:00:33,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 00:00:33,040 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:33,040 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:33,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 00:00:33,041 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:33,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:33,042 INFO L85 PathProgramCache]: Analyzing trace with hash -409524831, now seen corresponding path program 1 times [2021-10-29 00:00:33,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:33,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120025724] [2021-10-29 00:00:33,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:33,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:33,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:33,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:33,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120025724] [2021-10-29 00:00:33,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120025724] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:33,156 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:33,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:00:33,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402267992] [2021-10-29 00:00:33,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:33,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:33,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:33,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:33,161 INFO L87 Difference]: Start difference. First operand 101 states and 113 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:33,413 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2021-10-29 00:00:33,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:33,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 00:00:33,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:33,416 INFO L225 Difference]: With dead ends: 101 [2021-10-29 00:00:33,416 INFO L226 Difference]: Without dead ends: 99 [2021-10-29 00:00:33,417 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-29 00:00:33,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-10-29 00:00:33,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 89 states have (on average 1.247191011235955) internal successors, (111), 98 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:33,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2021-10-29 00:00:33,435 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 13 [2021-10-29 00:00:33,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:33,436 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2021-10-29 00:00:33,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2021-10-29 00:00:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 00:00:33,438 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:33,438 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:33,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 00:00:33,439 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:33,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:33,440 INFO L85 PathProgramCache]: Analyzing trace with hash 136195212, now seen corresponding path program 1 times [2021-10-29 00:00:33,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:33,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844610657] [2021-10-29 00:00:33,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:33,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:33,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:33,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:33,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844610657] [2021-10-29 00:00:33,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844610657] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:33,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:33,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:33,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982760798] [2021-10-29 00:00:33,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:33,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:33,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:33,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:33,644 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:33,954 INFO L93 Difference]: Finished difference Result 136 states and 152 transitions. [2021-10-29 00:00:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 00:00:33,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 00:00:33,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:33,956 INFO L225 Difference]: With dead ends: 136 [2021-10-29 00:00:33,956 INFO L226 Difference]: Without dead ends: 134 [2021-10-29 00:00:33,957 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:33,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-29 00:00:33,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 105. [2021-10-29 00:00:33,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 95 states have (on average 1.2526315789473683) internal successors, (119), 104 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2021-10-29 00:00:33,979 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 14 [2021-10-29 00:00:33,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:33,980 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2021-10-29 00:00:33,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:33,980 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2021-10-29 00:00:33,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 00:00:33,984 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:33,985 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:33,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 00:00:33,985 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:33,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:33,986 INFO L85 PathProgramCache]: Analyzing trace with hash 137742357, now seen corresponding path program 1 times [2021-10-29 00:00:33,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:33,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336916474] [2021-10-29 00:00:33,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:33,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:34,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:34,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:34,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336916474] [2021-10-29 00:00:34,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336916474] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:34,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:34,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:00:34,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804318419] [2021-10-29 00:00:34,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:34,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:34,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:34,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:34,092 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:34,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:34,335 INFO L93 Difference]: Finished difference Result 126 states and 142 transitions. [2021-10-29 00:00:34,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:34,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 00:00:34,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:34,337 INFO L225 Difference]: With dead ends: 126 [2021-10-29 00:00:34,337 INFO L226 Difference]: Without dead ends: 124 [2021-10-29 00:00:34,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:34,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-29 00:00:34,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 103. [2021-10-29 00:00:34,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 102 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:34,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2021-10-29 00:00:34,347 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 14 [2021-10-29 00:00:34,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:34,348 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2021-10-29 00:00:34,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:34,348 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2021-10-29 00:00:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 00:00:34,349 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:34,350 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:34,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 00:00:34,350 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:34,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:34,351 INFO L85 PathProgramCache]: Analyzing trace with hash 189636292, now seen corresponding path program 1 times [2021-10-29 00:00:34,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:34,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830865677] [2021-10-29 00:00:34,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:34,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:34,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:34,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:34,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830865677] [2021-10-29 00:00:34,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830865677] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:34,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:34,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:34,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330236821] [2021-10-29 00:00:34,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:34,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:34,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:34,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:34,466 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:34,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:34,742 INFO L93 Difference]: Finished difference Result 113 states and 127 transitions. [2021-10-29 00:00:34,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:34,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 00:00:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:34,744 INFO L225 Difference]: With dead ends: 113 [2021-10-29 00:00:34,744 INFO L226 Difference]: Without dead ends: 109 [2021-10-29 00:00:34,745 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:34,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-29 00:00:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2021-10-29 00:00:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 95 states have (on average 1.2421052631578948) internal successors, (118), 103 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2021-10-29 00:00:34,752 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 14 [2021-10-29 00:00:34,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:34,753 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2021-10-29 00:00:34,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:34,754 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2021-10-29 00:00:34,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 00:00:34,755 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:34,755 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:34,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 00:00:34,756 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:34,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:34,757 INFO L85 PathProgramCache]: Analyzing trace with hash -24950085, now seen corresponding path program 1 times [2021-10-29 00:00:34,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:34,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235710590] [2021-10-29 00:00:34,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:34,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:34,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:34,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235710590] [2021-10-29 00:00:34,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235710590] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:34,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:34,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:34,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491238770] [2021-10-29 00:00:34,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:34,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:34,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:34,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:34,932 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:35,174 INFO L93 Difference]: Finished difference Result 131 states and 147 transitions. [2021-10-29 00:00:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 00:00:35,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 00:00:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:35,177 INFO L225 Difference]: With dead ends: 131 [2021-10-29 00:00:35,177 INFO L226 Difference]: Without dead ends: 129 [2021-10-29 00:00:35,177 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-29 00:00:35,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 107. [2021-10-29 00:00:35,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 98 states have (on average 1.2346938775510203) internal successors, (121), 106 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2021-10-29 00:00:35,183 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 15 [2021-10-29 00:00:35,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:35,183 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2021-10-29 00:00:35,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,184 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2021-10-29 00:00:35,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 00:00:35,185 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:35,185 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:35,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 00:00:35,185 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:35,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:35,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2034707599, now seen corresponding path program 1 times [2021-10-29 00:00:35,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:35,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607768959] [2021-10-29 00:00:35,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:35,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:35,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:35,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607768959] [2021-10-29 00:00:35,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607768959] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:35,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:35,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 00:00:35,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095900994] [2021-10-29 00:00:35,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:00:35,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:35,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:00:35,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:00:35,252 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:35,327 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2021-10-29 00:00:35,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:35,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-29 00:00:35,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:35,329 INFO L225 Difference]: With dead ends: 107 [2021-10-29 00:00:35,329 INFO L226 Difference]: Without dead ends: 105 [2021-10-29 00:00:35,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:35,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-10-29 00:00:35,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-10-29 00:00:35,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 104 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2021-10-29 00:00:35,337 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 16 [2021-10-29 00:00:35,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:35,339 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2021-10-29 00:00:35,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,340 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2021-10-29 00:00:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 00:00:35,347 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:35,347 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:35,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-29 00:00:35,348 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:35,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:35,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1348569745, now seen corresponding path program 1 times [2021-10-29 00:00:35,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:35,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192177094] [2021-10-29 00:00:35,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:35,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:35,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:35,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192177094] [2021-10-29 00:00:35,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192177094] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:35,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:35,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 00:00:35,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415667677] [2021-10-29 00:00:35,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:00:35,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:35,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:00:35,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:00:35,430 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:35,586 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2021-10-29 00:00:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:35,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-29 00:00:35,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:35,587 INFO L225 Difference]: With dead ends: 105 [2021-10-29 00:00:35,587 INFO L226 Difference]: Without dead ends: 101 [2021-10-29 00:00:35,588 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:35,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-29 00:00:35,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2021-10-29 00:00:35,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 94 states have (on average 1.2234042553191489) internal successors, (115), 100 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2021-10-29 00:00:35,594 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 17 [2021-10-29 00:00:35,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:35,595 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2021-10-29 00:00:35,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,595 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2021-10-29 00:00:35,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 00:00:35,596 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:35,596 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:35,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-29 00:00:35,597 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:35,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:35,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1418456853, now seen corresponding path program 1 times [2021-10-29 00:00:35,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:35,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434068977] [2021-10-29 00:00:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:35,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:35,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:35,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434068977] [2021-10-29 00:00:35,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434068977] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:35,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:35,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:35,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111417251] [2021-10-29 00:00:35,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:35,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:35,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:35,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:35,676 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:35,946 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2021-10-29 00:00:35,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:35,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 00:00:35,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:35,948 INFO L225 Difference]: With dead ends: 116 [2021-10-29 00:00:35,948 INFO L226 Difference]: Without dead ends: 114 [2021-10-29 00:00:35,948 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 00:00:35,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-10-29 00:00:35,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 97. [2021-10-29 00:00:35,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 91 states have (on average 1.2197802197802199) internal successors, (111), 96 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 111 transitions. [2021-10-29 00:00:35,955 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 111 transitions. Word has length 18 [2021-10-29 00:00:35,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:35,955 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 111 transitions. [2021-10-29 00:00:35,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:35,956 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 111 transitions. [2021-10-29 00:00:35,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 00:00:35,959 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:35,959 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:35,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-29 00:00:35,960 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:35,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:35,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1471897933, now seen corresponding path program 1 times [2021-10-29 00:00:35,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:35,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610090220] [2021-10-29 00:00:35,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:35,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:36,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:36,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610090220] [2021-10-29 00:00:36,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610090220] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:36,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:36,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:36,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244504295] [2021-10-29 00:00:36,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:36,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:36,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:36,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:36,084 INFO L87 Difference]: Start difference. First operand 97 states and 111 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:36,310 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2021-10-29 00:00:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 00:00:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:36,312 INFO L225 Difference]: With dead ends: 97 [2021-10-29 00:00:36,313 INFO L226 Difference]: Without dead ends: 93 [2021-10-29 00:00:36,313 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:00:36,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-29 00:00:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-10-29 00:00:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 92 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:36,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 107 transitions. [2021-10-29 00:00:36,319 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 107 transitions. Word has length 18 [2021-10-29 00:00:36,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:36,320 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 107 transitions. [2021-10-29 00:00:36,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:36,320 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 107 transitions. [2021-10-29 00:00:36,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 00:00:36,321 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:36,321 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:36,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-29 00:00:36,322 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:36,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:36,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1159129958, now seen corresponding path program 1 times [2021-10-29 00:00:36,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:36,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359021796] [2021-10-29 00:00:36,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:36,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:36,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:36,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:36,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359021796] [2021-10-29 00:00:36,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359021796] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:36,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:36,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:36,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928910335] [2021-10-29 00:00:36,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:36,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:36,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:36,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:36,444 INFO L87 Difference]: Start difference. First operand 93 states and 107 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:36,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:36,698 INFO L93 Difference]: Finished difference Result 103 states and 119 transitions. [2021-10-29 00:00:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:36,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 00:00:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:36,700 INFO L225 Difference]: With dead ends: 103 [2021-10-29 00:00:36,700 INFO L226 Difference]: Without dead ends: 54 [2021-10-29 00:00:36,701 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 00:00:36,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-10-29 00:00:36,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-10-29 00:00:36,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.08) internal successors, (54), 53 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:36,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-10-29 00:00:36,704 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 18 [2021-10-29 00:00:36,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:36,704 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-10-29 00:00:36,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-10-29 00:00:36,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-29 00:00:36,706 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:36,706 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:36,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-29 00:00:36,707 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:36,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:36,707 INFO L85 PathProgramCache]: Analyzing trace with hash 892497877, now seen corresponding path program 1 times [2021-10-29 00:00:36,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:36,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671988999] [2021-10-29 00:00:36,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:36,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:36,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:36,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671988999] [2021-10-29 00:00:36,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671988999] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:36,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:36,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-29 00:00:36,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932903671] [2021-10-29 00:00:36,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-29 00:00:36,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:36,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-29 00:00:36,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-10-29 00:00:36,915 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:37,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:37,086 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2021-10-29 00:00:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 00:00:37,087 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-29 00:00:37,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:37,090 INFO L225 Difference]: With dead ends: 54 [2021-10-29 00:00:37,090 INFO L226 Difference]: Without dead ends: 52 [2021-10-29 00:00:37,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-10-29 00:00:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-29 00:00:37,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-29 00:00:37,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 49 states have (on average 1.0612244897959184) internal successors, (52), 51 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:37,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-10-29 00:00:37,095 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 44 [2021-10-29 00:00:37,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:37,095 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-10-29 00:00:37,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:37,096 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-10-29 00:00:37,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-29 00:00:37,100 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:37,101 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:37,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-29 00:00:37,101 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:37,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash 892513765, now seen corresponding path program 1 times [2021-10-29 00:00:37,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:37,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117742517] [2021-10-29 00:00:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:37,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:37,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:37,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117742517] [2021-10-29 00:00:37,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117742517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:37,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:37,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-29 00:00:37,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619781036] [2021-10-29 00:00:37,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-29 00:00:37,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:37,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-29 00:00:37,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-10-29 00:00:37,298 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:37,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:37,463 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2021-10-29 00:00:37,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 00:00:37,463 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-29 00:00:37,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:37,464 INFO L225 Difference]: With dead ends: 59 [2021-10-29 00:00:37,464 INFO L226 Difference]: Without dead ends: 57 [2021-10-29 00:00:37,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-10-29 00:00:37,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-29 00:00:37,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 50. [2021-10-29 00:00:37,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:37,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-10-29 00:00:37,467 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 44 [2021-10-29 00:00:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:37,467 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-10-29 00:00:37,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 13 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:37,468 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-10-29 00:00:37,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-29 00:00:37,468 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:37,469 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:37,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-29 00:00:37,469 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:37,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:37,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1897634854, now seen corresponding path program 1 times [2021-10-29 00:00:37,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:37,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790756779] [2021-10-29 00:00:37,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:37,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:37,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:37,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:37,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790756779] [2021-10-29 00:00:37,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790756779] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:37,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:37,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:37,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954118222] [2021-10-29 00:00:37,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:37,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:37,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:37,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:37,607 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:37,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:37,747 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-10-29 00:00:37,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:37,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-29 00:00:37,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:37,749 INFO L225 Difference]: With dead ends: 50 [2021-10-29 00:00:37,749 INFO L226 Difference]: Without dead ends: 46 [2021-10-29 00:00:37,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:00:37,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-29 00:00:37,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-29 00:00:37,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-10-29 00:00:37,752 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 45 [2021-10-29 00:00:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:37,753 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-10-29 00:00:37,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:37,753 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-10-29 00:00:37,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-29 00:00:37,754 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:37,754 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:37,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-29 00:00:37,754 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-10-29 00:00:37,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:37,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1898127398, now seen corresponding path program 1 times [2021-10-29 00:00:37,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:37,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966299117] [2021-10-29 00:00:37,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:37,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:37,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:37,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966299117] [2021-10-29 00:00:37,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966299117] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:37,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:37,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:37,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299324533] [2021-10-29 00:00:37,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:37,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:37,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:37,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:37,852 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:38,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:38,005 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2021-10-29 00:00:38,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:38,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-29 00:00:38,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:38,006 INFO L225 Difference]: With dead ends: 50 [2021-10-29 00:00:38,006 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 00:00:38,007 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 00:00:38,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 00:00:38,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 00:00:38,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:38,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 00:00:38,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2021-10-29 00:00:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:38,008 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 00:00:38,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:38,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 00:00:38,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 00:00:38,011 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,015 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,016 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:00:38,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-29 00:00:38,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 00:00:38,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:00:38,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:00:38,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:00:38,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:00:38,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:00:38,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:00:38,161 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2021-10-29 00:00:38,162 INFO L857 garLoopResultBuilder]: For program point L217(lines 217 229) no Hoare annotation was computed. [2021-10-29 00:00:38,162 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 969) no Hoare annotation was computed. [2021-10-29 00:00:38,162 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 991) no Hoare annotation was computed. [2021-10-29 00:00:38,162 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 275) no Hoare annotation was computed. [2021-10-29 00:00:38,163 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 883) no Hoare annotation was computed. [2021-10-29 00:00:38,163 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 971) no Hoare annotation was computed. [2021-10-29 00:00:38,163 INFO L857 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-10-29 00:00:38,163 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-29 00:00:38,164 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 00:00:38,164 INFO L857 garLoopResultBuilder]: For program point L317(lines 317 994) no Hoare annotation was computed. [2021-10-29 00:00:38,164 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-29 00:00:38,164 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 424) no Hoare annotation was computed. [2021-10-29 00:00:38,164 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 242) no Hoare annotation was computed. [2021-10-29 00:00:38,165 INFO L857 garLoopResultBuilder]: For program point L103(lines 103 125) no Hoare annotation was computed. [2021-10-29 00:00:38,165 INFO L857 garLoopResultBuilder]: For program point L615(lines 615 626) no Hoare annotation was computed. [2021-10-29 00:00:38,165 INFO L857 garLoopResultBuilder]: For program point L929(lines 929 941) no Hoare annotation was computed. [2021-10-29 00:00:38,165 INFO L857 garLoopResultBuilder]: For program point L219(line 219) no Hoare annotation was computed. [2021-10-29 00:00:38,165 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 269) no Hoare annotation was computed. [2021-10-29 00:00:38,166 INFO L857 garLoopResultBuilder]: For program point L665(lines 665 963) no Hoare annotation was computed. [2021-10-29 00:00:38,166 INFO L857 garLoopResultBuilder]: For program point L434(lines 434 985) no Hoare annotation was computed. [2021-10-29 00:00:38,166 INFO L857 garLoopResultBuilder]: For program point L269(line 269) no Hoare annotation was computed. [2021-10-29 00:00:38,166 INFO L857 garLoopResultBuilder]: For program point L649(lines 649 965) no Hoare annotation was computed. [2021-10-29 00:00:38,166 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-10-29 00:00:38,167 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 988) no Hoare annotation was computed. [2021-10-29 00:00:38,167 INFO L857 garLoopResultBuilder]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2021-10-29 00:00:38,167 INFO L857 garLoopResultBuilder]: For program point L468(lines 468 492) no Hoare annotation was computed. [2021-10-29 00:00:38,167 INFO L857 garLoopResultBuilder]: For program point L881(lines 881 907) no Hoare annotation was computed. [2021-10-29 00:00:38,168 INFO L857 garLoopResultBuilder]: For program point L171(lines 171 193) no Hoare annotation was computed. [2021-10-29 00:00:38,168 INFO L857 garLoopResultBuilder]: For program point L683(lines 683 694) no Hoare annotation was computed. [2021-10-29 00:00:38,168 INFO L857 garLoopResultBuilder]: For program point L105(line 105) no Hoare annotation was computed. [2021-10-29 00:00:38,168 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 288) no Hoare annotation was computed. [2021-10-29 00:00:38,168 INFO L857 garLoopResultBuilder]: For program point L931(line 931) no Hoare annotation was computed. [2021-10-29 00:00:38,169 INFO L857 garLoopResultBuilder]: For program point L733(lines 733 957) no Hoare annotation was computed. [2021-10-29 00:00:38,169 INFO L857 garLoopResultBuilder]: For program point L155(lines 155 234) no Hoare annotation was computed. [2021-10-29 00:00:38,169 INFO L857 garLoopResultBuilder]: For program point L502(lines 502 979) no Hoare annotation was computed. [2021-10-29 00:00:38,169 INFO L857 garLoopResultBuilder]: For program point L205(lines 205 231) no Hoare annotation was computed. [2021-10-29 00:00:38,169 INFO L857 garLoopResultBuilder]: For program point L717(lines 717 959) no Hoare annotation was computed. [2021-10-29 00:00:38,170 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 982) no Hoare annotation was computed. [2021-10-29 00:00:38,170 INFO L860 garLoopResultBuilder]: At program point L932(lines 17 1006) the Hoare annotation is: true [2021-10-29 00:00:38,170 INFO L857 garLoopResultBuilder]: For program point L866(lines 866 946) no Hoare annotation was computed. [2021-10-29 00:00:38,170 INFO L857 garLoopResultBuilder]: For program point L255(lines 255 277) no Hoare annotation was computed. [2021-10-29 00:00:38,171 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2021-10-29 00:00:38,171 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 560) no Hoare annotation was computed. [2021-10-29 00:00:38,171 INFO L857 garLoopResultBuilder]: For program point L883(line 883) no Hoare annotation was computed. [2021-10-29 00:00:38,171 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 762) no Hoare annotation was computed. [2021-10-29 00:00:38,171 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-29 00:00:38,172 INFO L857 garLoopResultBuilder]: For program point L801(lines 801 951) no Hoare annotation was computed. [2021-10-29 00:00:38,172 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 00:00:38,172 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2021-10-29 00:00:38,172 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-29 00:00:38,172 INFO L857 garLoopResultBuilder]: For program point L570(lines 570 973) no Hoare annotation was computed. [2021-10-29 00:00:38,173 INFO L857 garLoopResultBuilder]: For program point L917(lines 917 943) no Hoare annotation was computed. [2021-10-29 00:00:38,173 INFO L857 garLoopResultBuilder]: For program point L785(lines 785 953) no Hoare annotation was computed. [2021-10-29 00:00:38,173 INFO L857 garLoopResultBuilder]: For program point L207(line 207) no Hoare annotation was computed. [2021-10-29 00:00:38,173 INFO L857 garLoopResultBuilder]: For program point L521(lines 521 976) no Hoare annotation was computed. [2021-10-29 00:00:38,174 INFO L853 garLoopResultBuilder]: At program point L868(lines 26 1000) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 0 ULTIMATE.start_main_~main__t~0)) [2021-10-29 00:00:38,174 INFO L857 garLoopResultBuilder]: For program point L257(line 257) no Hoare annotation was computed. [2021-10-29 00:00:38,174 INFO L857 garLoopResultBuilder]: For program point L604(lines 604 628) no Hoare annotation was computed. [2021-10-29 00:00:38,174 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2021-10-29 00:00:38,174 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2021-10-29 00:00:38,175 INFO L857 garLoopResultBuilder]: For program point L819(lines 819 830) no Hoare annotation was computed. [2021-10-29 00:00:38,175 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2021-10-29 00:00:38,175 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 967) no Hoare annotation was computed. [2021-10-29 00:00:38,175 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2021-10-29 00:00:38,176 INFO L857 garLoopResultBuilder]: For program point L919(line 919) no Hoare annotation was computed. [2021-10-29 00:00:38,176 INFO L857 garLoopResultBuilder]: For program point L853(lines 853 947) no Hoare annotation was computed. [2021-10-29 00:00:38,176 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 236) no Hoare annotation was computed. [2021-10-29 00:00:38,176 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 970) no Hoare annotation was computed. [2021-10-29 00:00:38,176 INFO L857 garLoopResultBuilder]: For program point L325(lines 325 993) no Hoare annotation was computed. [2021-10-29 00:00:38,177 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 696) no Hoare annotation was computed. [2021-10-29 00:00:38,177 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2021-10-29 00:00:38,177 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 00:00:38,177 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 995) no Hoare annotation was computed. [2021-10-29 00:00:38,177 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 931) no Hoare annotation was computed. [2021-10-29 00:00:38,178 INFO L853 garLoopResultBuilder]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2021-10-29 00:00:38,178 INFO L857 garLoopResultBuilder]: For program point L706(lines 706 961) no Hoare annotation was computed. [2021-10-29 00:00:38,178 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 354) no Hoare annotation was computed. [2021-10-29 00:00:38,178 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2021-10-29 00:00:38,179 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-29 00:00:38,179 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 964) no Hoare annotation was computed. [2021-10-29 00:00:38,179 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 56) no Hoare annotation was computed. [2021-10-29 00:00:38,179 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 919) no Hoare annotation was computed. [2021-10-29 00:00:38,179 INFO L860 garLoopResultBuilder]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2021-10-29 00:00:38,180 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 987) no Hoare annotation was computed. [2021-10-29 00:00:38,180 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 764) no Hoare annotation was computed. [2021-10-29 00:00:38,180 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 285) no Hoare annotation was computed. [2021-10-29 00:00:38,180 INFO L857 garLoopResultBuilder]: For program point L377(lines 377 989) no Hoare annotation was computed. [2021-10-29 00:00:38,180 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 955) no Hoare annotation was computed. [2021-10-29 00:00:38,180 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2021-10-29 00:00:38,181 INFO L857 garLoopResultBuilder]: For program point L411(lines 411 422) no Hoare annotation was computed. [2021-10-29 00:00:38,181 INFO L857 garLoopResultBuilder]: For program point L725(lines 725 958) no Hoare annotation was computed. [2021-10-29 00:00:38,181 INFO L857 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2021-10-29 00:00:38,181 INFO L857 garLoopResultBuilder]: For program point L461(lines 461 981) no Hoare annotation was computed. [2021-10-29 00:00:38,182 INFO L853 garLoopResultBuilder]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2021-10-29 00:00:38,182 INFO L857 garLoopResultBuilder]: For program point L874(lines 874 945) no Hoare annotation was computed. [2021-10-29 00:00:38,182 INFO L857 garLoopResultBuilder]: For program point L808(lines 808 832) no Hoare annotation was computed. [2021-10-29 00:00:38,182 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 233) no Hoare annotation was computed. [2021-10-29 00:00:38,182 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 999) no Hoare annotation was computed. [2021-10-29 00:00:38,183 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 00:00:38,183 INFO L857 garLoopResultBuilder]: For program point L445(lines 445 983) no Hoare annotation was computed. [2021-10-29 00:00:38,183 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2021-10-29 00:00:38,183 INFO L857 garLoopResultBuilder]: For program point L115(lines 115 123) no Hoare annotation was computed. [2021-10-29 00:00:38,183 INFO L857 garLoopResultBuilder]: For program point L842(lines 842 949) no Hoare annotation was computed. [2021-10-29 00:00:38,184 INFO L857 garLoopResultBuilder]: For program point L132(lines 132 284) no Hoare annotation was computed. [2021-10-29 00:00:38,184 INFO L857 garLoopResultBuilder]: For program point L479(lines 479 490) no Hoare annotation was computed. [2021-10-29 00:00:38,184 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 952) no Hoare annotation was computed. [2021-10-29 00:00:38,184 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 283) no Hoare annotation was computed. [2021-10-29 00:00:38,184 INFO L857 garLoopResultBuilder]: For program point L83(lines 83 286) no Hoare annotation was computed. [2021-10-29 00:00:38,184 INFO L857 garLoopResultBuilder]: For program point L529(lines 529 975) no Hoare annotation was computed. [2021-10-29 00:00:38,185 INFO L857 garLoopResultBuilder]: For program point L298(lines 298 997) no Hoare annotation was computed. [2021-10-29 00:00:38,185 INFO L857 garLoopResultBuilder]: For program point L34(lines 34 58) no Hoare annotation was computed. [2021-10-29 00:00:38,185 INFO L857 garLoopResultBuilder]: For program point L513(lines 513 977) no Hoare annotation was computed. [2021-10-29 00:00:38,185 INFO L857 garLoopResultBuilder]: For program point L893(lines 893 905) no Hoare annotation was computed. [2021-10-29 00:00:38,185 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-10-29 00:00:38,186 INFO L853 garLoopResultBuilder]: At program point L282(lines 132 284) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0)) [2021-10-29 00:00:38,186 INFO L857 garLoopResultBuilder]: For program point L183(lines 183 191) no Hoare annotation was computed. [2021-10-29 00:00:38,186 INFO L857 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2021-10-29 00:00:38,186 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 356) no Hoare annotation was computed. [2021-10-29 00:00:38,187 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 558) no Hoare annotation was computed. [2021-10-29 00:00:38,191 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:38,193 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:00:38,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:00:38 BoogieIcfgContainer [2021-10-29 00:00:38,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:00:38,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:00:38,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:00:38,223 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:00:38,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:30" (3/4) ... [2021-10-29 00:00:38,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 00:00:38,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-29 00:00:38,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 00:00:38,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:00:38,271 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:00:38,445 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:00:38,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:00:38,448 INFO L168 Benchmark]: Toolchain (without parser) took 10162.54 ms. Allocated memory was 92.3 MB in the beginning and 157.3 MB in the end (delta: 65.0 MB). Free memory was 57.1 MB in the beginning and 71.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 49.7 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:38,449 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 92.3 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 21.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:00:38,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 822.76 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 86.5 MB in the end (delta: -29.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:38,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.67 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 83.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:38,451 INFO L168 Benchmark]: Boogie Preprocessor took 106.97 ms. Allocated memory is still 121.6 MB. Free memory was 83.5 MB in the beginning and 81.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:38,452 INFO L168 Benchmark]: RCFGBuilder took 1006.48 ms. Allocated memory is still 121.6 MB. Free memory was 81.4 MB in the beginning and 87.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:38,453 INFO L168 Benchmark]: TraceAbstraction took 7858.45 ms. Allocated memory was 121.6 MB in the beginning and 157.3 MB in the end (delta: 35.7 MB). Free memory was 87.0 MB in the beginning and 83.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:38,453 INFO L168 Benchmark]: Witness Printer took 223.28 ms. Allocated memory is still 157.3 MB. Free memory was 83.4 MB in the beginning and 71.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:00:38,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 92.3 MB. Free memory was 64.1 MB in the beginning and 64.0 MB in the end (delta: 21.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 822.76 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 56.9 MB in the beginning and 86.5 MB in the end (delta: -29.6 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 116.67 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 83.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 106.97 ms. Allocated memory is still 121.6 MB. Free memory was 83.5 MB in the beginning and 81.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1006.48 ms. Allocated memory is still 121.6 MB. Free memory was 81.4 MB in the beginning and 87.4 MB in the end (delta: -5.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7858.45 ms. Allocated memory was 121.6 MB in the beginning and 157.3 MB in the end (delta: 35.7 MB). Free memory was 87.0 MB in the beginning and 83.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 40.3 MB. Max. memory is 16.1 GB. * Witness Printer took 223.28 ms. Allocated memory is still 157.3 MB. Free memory was 83.4 MB in the beginning and 71.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 48]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 105]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 117]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 207]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 219]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 269]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 883]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 895]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 931]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1038 SDtfs, 1507 SDslu, 1445 SDs, 0 SdLazy, 3638 SolverSat, 339 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 119 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 16 NumberOfFragments, 30 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4431 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 204 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 386 NumberOfCodeBlocks, 386 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 1131 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-29 00:00:38,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0298c7ad-920c-4be1-949a-4eae96a07452/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...